On Wed, Jun 15, 2022 at 3:28 PM kernel test robot <lkp@xxxxxxxxx> wrote: > > Hi, > > I love your patch! Perhaps something to improve: > > [auto build test WARNING on akpm-mm/mm-everything] > [also build test WARNING on linus/master v5.19-rc2 next-20220615] > [cannot apply to vbabka-slab/for-next] > [If your patch is applied to the wrong git tree, kindly drop us a note. > And when submitting patch, we suggest to use '--base' as documented in > https://git-scm.com/docs/git-format-patch] > > url: https://github.com/intel-lab-lkp/linux/commits/andrey-konovalov-linux-dev/kasan-switch-tag-based-modes-to-stack-ring-from-per-object-metadata/20220614-042239 > base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything > config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20220615/202206152134.sadCRvGk-lkp@xxxxxxxxx/config) > compiler: s390-linux-gcc (GCC) 11.3.0 > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # https://github.com/intel-lab-lkp/linux/commit/b0b10a57b2d9a5e5ae5d7ca62046b9774df1a88f > git remote add linux-review https://github.com/intel-lab-lkp/linux > git fetch --no-tags linux-review andrey-konovalov-linux-dev/kasan-switch-tag-based-modes-to-stack-ring-from-per-object-metadata/20220614-042239 > git checkout b0b10a57b2d9a5e5ae5d7ca62046b9774df1a88f > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash mm/kasan/ > > If you fix the issue, kindly add following tag where applicable > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > mm/kasan/common.c: In function 'kasan_addr_to_slab': > >> mm/kasan/common.c:35:19: warning: ordered comparison of pointer with null pointer [-Wextra] > 35 | if ((addr >= (void *)PAGE_OFFSET) && (addr < high_memory)) > | ^~ > mm/kasan/common.c: In function '____kasan_slab_free': > mm/kasan/common.c:202:12: warning: variable 'tag' set but not used [-Wunused-but-set-variable] > 202 | u8 tag; > | ^~~ Will fix both in v2. Thanks!